From 5bd73286d50fc242bbff1aaddb0e97c4527c9d78 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 5 Apr 2020 21:59:55 -0400
Subject: [PATCH] fix a braino in legitimize_path()
brown paperbag time... wrong order of arguments ended up confusing
the values to check dentry and mount_lock seqcounts against.
Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 2aa38470853a ("non-RCU analogue of the previous commit")
Tested-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/namei.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/namei.c b/fs/namei.c
index 61fdb77a7d58a..a320371899cf9 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -610,7 +610,7 @@ static bool __legitimize_path(struct path *path, unsigned seq, unsigned mseq)
static inline bool legitimize_path(struct nameidata *nd,
struct path *path, unsigned seq)
{
- return __legitimize_path(path, nd->m_seq, seq);
+ return __legitimize_path(path, seq, nd->m_seq);
}
static bool legitimize_links(struct nameidata *nd)
--
2.30.2